finally did the nidoking level 100 glitch in pokemon blue

I've been the last 3 hours researching and trying to get lucky with the fly trainer glitch, my starter was squirtle and I was using tail whip so it didn't work, I had to start a new game on my other 3ds and trade charmander to do growl on a level 4 pidgey, and then it finally worked. what do you guys think of this glitch, have you done it?